tox.ini update: Fix breakage caused by src/ext move, add 32-bit linux environments and other architectures supported by docker

[mkoeppe]

#29053 added tox.ini to support testing the sage distribution in isolated environments via docker.

In 9.1.beta6, the generated docker files do not work due to #21785.

This ticket fixes it and also adds linux environments for various other architectures supported by docker (see ​https://github.com/docker-library/official-images#architectures-other-than-amd64).

Examples:

$ tox -e docker-debian-buster-standard-i386
$ tox -e docker-ubuntu-bionic-standard-arm64
$ tox -e docker-ubuntu-bionic-minimal-armhf
$ tox -e docker-fedora-31-standard-arm64v8         # Docker for Mac only
$ tox -e docker-ubuntu-latest-standard-s390x       # Docker for Mac only

(The last two work with macOS Docker Desktop because it has binfmt_misc with qemu enabled.)

See also: ​https://trac.sagemath.org/wiki/ExoticPorts

---

Resources:

• How to Build and Run ARM Docker Containers on x86 Hosts · MatchboxBlog? - ​https://matchboxdorry.gitbooks.io/matchboxblog/content/blogs/build_and_run_arm_images.html
• Cross Building and Running Multi-Arch Docker Images – Micheal Waltz – DevOps? Engineer - ​https://www.ecliptik.com/Cross-Building-and-Running-Multi-Arch-Docker-Images/
• multiarch/qemu-user-static - Docker Hub - ​https://hub.docker.com/r/multiarch/qemu-user-static/
• multiarch/ubuntu-core - Docker Hub - ​https://hub.docker.com/r/multiarch/ubuntu-core/

[mkoeppe]

on top of #29104 to avoid merge conflicts

[mkoeppe]

Last 10 new commits:

​98edff6	Add build/pkgs/gfortran/distros/fedora.txt
​843ca76	build/pkgs/fedora.txt: Add python3
​bd6a545	tox.ini: Add debian stretch, put sid last
​23c6334	build/pkgs/openblas/distros/arch.txt: Add lapack, cblas
​fca6654	tox.ini: Add toxenvs local-homebrew-macos-minimal, local-homebrew-macos-standard
​e0e8a4c	tox.ini [local-homebrew]: Fixup PATH, PKG_CONFIG_PATH, set LDFLAGS, CPPFLAGS; [local-direct]: New
​16ca88f	tox.ini: Use {envlogdir}; use ln -sf
​6a1803d	tox.ini [local]: First build the base-toolchain
​4b72987	tox.ini [local-homebrew]: Set PATH earlier and set ACLOCAL_PATH for bootstrapping
​839d6fb	tox.ini: Add other archs supported by docker

[git]

Branch pushed to git repo; I updated commit sha1. New commits:

​67e14ce

fixup for llocal

[mkoeppe]

This works on macOS because it is running everything in a virtualbox.

I haven't succeeded in getting it to work on github actions yet. last attempt: ​https://github.com/mkoeppe/sage/runs/422184737?check_suite_focus=true

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​2141b75	Merge tag '9.1.beta3' into t/29104/tox-homebrew
​2b0a25e	tox.ini: Add other archs supported by docker
​e3f832c	fixup for llocal
​b5361e2	tox.ini: Restructure docker image:tag construction, add multiarch for Linux Docker

[mkoeppe]

Tests run at ​https://github.com/mkoeppe/sage/actions/runs/35630769

[git]

Branch pushed to git repo; I updated commit sha1. New commits:

​4350d0a

tox.ini: Add raspbian

[mkoeppe]

Also this ticket needs review and would facilitate testing on 32bit x86 and ARM

[git]

Branch pushed to git repo; I updated commit sha1. New commits:

​59e1d6f

Merge tag '9.1.beta4' into t/29143/add_to_tox_ini_some_32_bit_linux_environments

[git]

Branch pushed to git repo; I updated commit sha1. New commits:

​4eb201b	Merge tag '9.1.beta4' into t/29104/tox-homebrew
​254753d	Merge branch 't/29104/tox-homebrew' into t/29143/add_to_tox_ini_some_32_bit_linux_environments

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​749f83e	tox.ini: Add other archs supported by docker
​e941bd5	fixup for llocal
​2441fe9	tox.ini: Restructure docker image:tag construction, add multiarch for Linux Docker
​2f057cb	tox.ini: Add raspbian
​7f122bd	build/bin/write-dockerfile.sh: src/ext has moved and is no longer needed for the configure phase

[mkoeppe]

The branch is no longer on top of #29104 (homebrew).

Needs review.

[mkoeppe]

Thanks!